Tresa Miller, 41, was pronounced dead at the site of the crash on Lt. J.G. Brender Highway, about a quarter-mile from the intersection with Stanton Corners Road. The crash was reported a few minutes after 8 a.m. Tuesday.

Police said they believe the crash and Miller’s death may have been caused by a medical condition. Police said Miller had worked an 11 p.m. to 7 a.m. shift at Catskill Regional Medical Center in Harris, where she was a registrar, and was heading home.